Fear not!
Quality of life will be significantly better.
I had a hip replaced 10 yrs. ago...(metal on metal) Would do it again in a heartbeat. Only stayed in hospital 1.5 days and went home. Wife is nurse! Gotta git up and move around. A walker and cane were my best friends for a couple weeks. Time flew by. You will find that if you have the will, the "way" will be there.
Had total shoulder replacement 2 yrs. ago. While successful, muscles are taking more time to adjust.
YOU CAN DO THIS! Feeling better will be worth everything!
Best of Luck